Well-casing and strainer.



No. 702,006. 0 Patented lune |0,'|902.

v J. G. HUFFMAN.

WELL CASING ANDA STBAINEB.

\ I (Application filed Aug. 9, 1900.)

(No Model.) A

l 5y man,

.71,115 ai'fornj v UNITED STATES uA'MEs e. HUFEMAN,

PATENT OFFICE.

or PANA, ILLINOIS.

WELL-CASING AND STRAINER.

SPECIFICATION forming part of Letters Patent No. 702,006, dated June 10,1902.

Application filed August 9,1900.

To all whom t may concern.-

Beit known that I, JAMES G. IIUFFMAN, of the city of Pana, county ofChristian, and State of Illinois, have invented certain new and usefulImprovements in Well-Casings and Strainers Therefor, of which thefollow-- ing is a specification.

This invention enables water to be drawn in large quantities fromdifferent veins and to be held in reserve below the veins orwaterbearing strata. It is exemplified in the' structure hereinafterdescribed, and it is defined in the appended claims. e

In the drawing forming part of this specification the lower end of awellis shown in central vertical section.

Water-bearing strata are shown at B, and

waterless strata are shown at A.

At C are shown sections of .casing extending through the Waterless andimpervious strata, and at D are shown sections of casing extendingthrough the water-bearing strata.

At F is shown a section of casing extending below the lowestwater-bearing stratum, and G represents abottom of cement or otherimpervious substance. y

p The plain casing is built downward as the well is excavated, theoperation being carried on in the customary or any desirable manner. Themode of procedure that I advise is to build up section after s ectionout of sheet metal bent to form and secured together by patch-bolts andsecure the different sections together in the same manner. The sectionsof tubular casing should taper the thickness of the metal used, so thatan end of one section may slip into the section next adjoining.

When the excavation for the well nears Aa water-bearing stratum, theprecise location and thickness of such stratum are determined, and theimperforate casing is made to terminate ilnmediately above the'stratum.Then a section of tubular casing slightly smaller in diameter than theupper imperforate casing is constructed outsidethe well and providedwith a ring, as E, which fills the space between the lower end of theimperforate casing and theupper endv of the specially constructedsection. The p speciallyconstructed section has a number ofstrainerholes K formed through its wall before it is put in place, and'such strainer-holes are Serial No. 26.365. (No model.)

closed by plates J, which are bolted to the innervsurface of thesection. When the section A D is completed and providedwith closurecapsfor the strainer-holes, such section is set in place in the lower end ofthe imperforate casing and made to extend through the watery bearingstratum. Then the parts, including ring E, are bolted together, andimperforate sections of casing are built on downward, as

hereinbefore described.

If it is desired toA draw water from more than one stratum, the

imperforate sections are extended on downward until a secondwater-bearing stratum is reached and another strainer-section D isintroduced. This may be repeated as many times as there are veins to beutilized, and below the last vein the imperforate casing is extendeddownward sufciently far to form a tank or receptacle'into which thewater may flow from the lowest Vein when the water in the well abovesuch lower vein is exhausted. In l the drawing the limits of the papernecessi- `holes K, and rings I are screwed onto the inner ends of thestrainers and secured to the casing-wall in place of plates J. In thedrawings only enough strainers and strainer-holes are shown toillustrate the principle of my invention; but the number that may beused is llimited by nothing but the extent of the casing-sectionextending through the water-bearing stratum, and the length of eachstrainer may be as great as desired. One closureplate after anotherisremoved, strainer after strainer is inserted until the supply of wateris suicient to meet immediate demands, and the openings K not requiredare'l'eft closed to meet some possible demand of the future, y

In passing through the water-bearing strata the strainer-section isforced belowj the gravel and into the clay to a depth sufficient toprevent the head of Water from forcing water under the strainer-section.4

The strainers penetrate the water-bearing Ioo strata horizontally to anydesired extent. Their number is almost illimitable, even in oneWater-bearing stratum, and they may be used in a plurality of strata.The receptacle below the lowest vein provides for drainage of the Veinwhen the water is exhausted from the upper part of the casing, and italso acts as a supply-tank in which a considerable quantity of Water maybe held in reserve.

The strainer may be placed in the lower part of the vein of Water, Wherethe low is most free, and before inserting a strainer the loam and finesand may be stirred up and permitted to run into the Well, leavingcoarser sand and gravel to take its place and improve the flow of Waterto the strainer.

I claim l. A tubular Well-casing having strainerholescommunicatinghorizontally with waterbearing strata, closures for theholes, and strainers adapted to the holes when the closures therefor areremoved, substantially as described.

2. A' tubular Well-casing having strainerholes communicatinghorizontally with Waterbearing strata, closure-plates for the holesinside the casing, bolts to hold the closureplates in place andstrainers having securingrings, bolt-holes of which coincide With thebolt-holes of the closure-plates, substantially as described.

3. In a tubular well-casing a diametricallydiminished section secured.in place by an intervening ring, and horizontal strainer-tubesinsertible through normally closed holes in the diminished section,substantially as described.

4. The combination of a tubular Well-casing having holes in its sideWalls and strainers of smaller diameter than the holes of the casinginserted through such holes from the inside outward and rigidly securedtherein.

5. Theoombination ofatubularWell-casing havin g holes in its sideWalls,strainers smaller in diameter than the holes of the casingextended through such holes from the insideof the casing outward andiianges on the inner ends of the strainers secured to the inner surfaceof the easing.

In testimony whereof I sign my name in the presence of two subscribingWitnesses.

ROSA VOELCKER, R. E. DIeKINsoN.

